I am running Vista (Business Edition). You can adjust the icon size by holding the Ctrl key and then either drag your mouse or use the mousewheel. To get the "list" layout (upper left corner), I use a small, non-resident program called Iconlayout. You put it in your path, run it, set the icon layout you want, click save, then put a shortcut to it in your startup folder. For example, C:\iconlayout.exe -r tells it to restore the icon layout then exit.

The IM program is Trillian Astra which I am alpha testing. I have 3 Jabbers, Google Talk, AIM, ICQ, MSN, Yahoo, Bonjour, IRC, Astra, Facebook, MySpace, and Xfire all running in one program at a fraction of the resources. It also does Now Playing, Weather, and RSS. Skin for Astra is Cobalt, custom window is Vista Glass. I have patched Vista to allow for custom visual styles, and the visual style is Cleaero. My sidebar gadgets include:

The Sidebar skin is called "None." (Seriously.) I use John's Background Switcher for my wallpaper, and never know what is going to come up since it uses Yahoo, Flickr, and more Internet places to get its images.